Engine-starter.



I R. A. ST-ABLER.

ENGINE STARIER. I H M5PLICATION FILED DEC. 24. I914. I 1,156,718. Patented Oct. 12, 1915.v

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WITNESSES: INVENTOR ReubenASfabler A TTORNEVS APPLICATION FILE D DEC.24, 1914.

R. A. STABLER. ENGINE STARTER.

INVENTOR Reuben A. 5m bler A TTOR/VEYS Patented Oct. 12, 1915.

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R. A. STABLER.

ENGINE STARTER. APPLICATION FILED DEC.24 I914- Patented 001. 12, 1915. I

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WITNESSES: I/V I/EN T 0/? 6/ I I RubenASfabler ATTORNEYS tion after a forward movement.

REUBEN ABRAHAM STABLER, OF MUNOY, PENNSYLVANIA.

' ENGINE-STARTER.

Specification of Letters Patent.

Application filed December-24, 19 14. Serial-Ne. 879,890.

To all whom it may concern: v

Be it known that I, REUBEN A. STABLER,

a citizen of the United States, and a resi-f' dent of Muncy, in the'county of Lycoming and State of Pennsylvania, have invented a new and Improved Engine-Starter, of which the following is a full, clear, and exact de-' or equivalentcoimection with the sald sector and bushing being mounted scription.

My invention relates to means for turning the engine shaft of an automobile to start the engine without dismounting from the car.

adapted to be applied to the engine shaft, and a manually operated drive means arranged to give a turning movement to the driven member. A spring is arranged to return the drive member to the initial posi- Ratchet elements serve to establish the driving connection between the drive means and the driven element, and associated with the ratchet elements is a novel means to throw out the ratchet connection automatically in.

the event of back fire.

The invention will be particularly explained in the specific description following. Reference is had to the accompanying drawings forming part of this specification, in which similar characters of reference indicate-corresponding parts in all the views,'

and in which:

Figure 1 is a sectional front view of an engine starter embodying my invention; Fig. 2 is a side elevation with parts broken away; Fig. 3' is a plan view with parts broken out; Fig. 4 is a transverse vertical section; Fig. 5 is a longitudinal section on by a set screw 13, or the like. i I On the driven element 11 is formed an am the line 5-5 Fig. 1; and Fig. 6 is a detail longitudinal vertical section.

My invention, inthe illustrated form, is partlcularly adapted for the Ford car. In the illustrated example a driven element 11 is adapted to be applied to the front end of the engine shaft 10. As here shown, said driven element 11 is formed integral with a pulley 12 to actuate a fan. The pulley 12 is counter-bored to receive the end of the engine shaft 10 to which the pulley is fastened f'nular series of V-shaped' ratchetteeth 14,

best seen in Fig. 4. A pawl 15 is mounted torock on a pin 16 and has a tooth 15 adaptedto engage the ratchet 14. The pivot The invention comprises a driven member pin 16.1 of the pawl15'rockably secures said pawlto a flanged bushing 17 having one side. I

removable or in the form of a cover section 17 having its flange of slightly greater diameter than the flange at the opposite side. Said bushing 17 is received within the hub Patented o aia, 1915. 1

18 of a sector 19, the sectorhaving sgokes 20, I I

loosely. on the driven element 11. The members 17 17 of the bushing 17. are fastened together by studs 17".

Togive movement to the sector 19; in one ub, and

direct on, a cord or flexible element 21 is secured to the sector as at 21 and extends conventionally'indicated at 23*. From the pulley 22 the cord 21 may pass over a second pulley or sheave 24 carried by a bracket 25 on the dash-board 26, the cord thence passing through the dash-board and being provlded with a pull handle 27 within reach of the chauffeur. The handle 27 is shown as having a conical stem 28 which is received in a corresponding socket 29 secured to the dash-board 26. The sector 19 is given a return movement after each forward impulse through the medium of a spring drum 30, the spring of which is indicated by the character 30. Said, drum is connected by a chain '31,'or equivalent, to the sector, and a forward movement of the sector in response -to a pull on the cord 21, will unwind the chain 31 from the drum and" place the spring under tension, so that the reaction of the spring will return the sector to the original position; The drum 30 is suitably supported as by brackets 32 on a. transverse yoke-bar 33 secured to the chassis. To secure the yoke 33, the ends thereof rest on side bars 35 of the chassis, and receive end studs 34. Set screws 36 extend through I lugs 37 formed on the ends of the yoke 33 and bear against the said bar's-35.

Inorder to insure that the 'pawl 15 engages the ratchet 14'for turningthe driven element 11 and the engine shaft 10. the head of said pawl passes through a radial open-1 ing 17 in the bushing 17, audits outer end is received in" an interior radial recess 18 in,

the hub 18. The hub 18 in response to a pull on the cord 21 may have a'limited turnlng movement about the bushing 17 sufiieiently to rock to pawl 15 forwardly and depress the tooth 15* thereof into engagement with the ratchet 14. The bushing 17 is initially arrested from turning with the hub 18 by reason of a hook 38 engaging in a notch 40 in the periphery of one of the firm esof the bushing 17. The shank 39 of the 00k 38 is rockably and slidably secured by a bolt 41, or the like, to a bracket 42, said bracket being rigidly fastened by a screw 43, or the like, to a clip 44, hereinafter referred to, on the front-spring bar of the chassis. The bolt 41 passes through a longitudinal slot 45 in the shank 39 to give a longitudinal as well as a rocking movement to the latter. The shank 39 is under the infiuence of a retractile spring 46' connected with said shank and with an arm 47 depending from the bracket 42. The arrangement is such that if the sector 19 is turned forwardly by the cord 21, the hub 18 of the sector will move forwardly while the hook 38 holds the bushing 17, thereby rocking the 14. The continued forward movement of pawl 15 into engagement with the ratchet the hub 18 carries with it the bushing 17 and forces the hook 38 out of the notch against the tension of the spring 46, so that a continued movement of the sector 19 will impart the desired turning movement to the driven element 11 and the engine shaft;

In order to provide for the automatic release of the pawl 15 from the ratchet 14 upon a return movement of the sector 19 caused by the spring drum 30, and to automatically release the pawl in case of back fire, the pawl is formed with a heel 15 and said heel is adapted to be engaged by a finger 48 on a curved arm 49, which is rockably mounted by a pin 50 on the hub 18 to turn with the latter and rock on said pivot 50. The finger 48 extends inward approximately radially through an opening 51 in the hub 18 and through a registering opening 52 in the bushing- 17, in position to bear against the outer side of the heel 15 of the pawl. The curved arm 49 carries at the opposite end from the finger 48 a gripping dog 53 which is pivoted to said arm at one end as at 54 'and forked at its opposite end as at 55 to embrace'a curved track 56. The track'56 is rigidly secured to the yoke 33, said track being fastened at one end by a bolt 56, and near the opposite end by a bolt 57 which passes through an arm 57 on said track. The forked dog 53 is under the influence of a retractile spring 59 secured at one end to the dog, and its opposite end tothe curved arm 49. At the base of the fork 55 the dog 53 is formed with a curved cam surface 58, the terminal 58 of which may engage in any one of a series of notches 56 in the track 56.

meant depression 56 in the track 56, there being a shoulder 56 at the forward end of said depression. The arm 49 may move with the sector 19 and its hub 18 to bring the pawl 53 slightly rearward of the full line position of Fig. 4, as indicated in dotted lines, in response to a pull on the chain 31. Normally the dog 53 will be at the notch 56 and will move forwardly with the sector, relatively to the track. 56, in response to a pull on the cord 21. In the forward movement the dog 53 will slip over the shoulder 56, thereby placing the spring 59 under tension and disposing said dog in such an angular position that the terminal 58 will engage a notch 56- in the track 56 upon a retrograde movement of the pawl. hus, when the sector is moved forwardly to give a starting movement to the engine shaft, should back fire occur, the dog 53 will engage a notch 56 and prevent retrograde movement of the arm 49 carrying the finger 48, thereby causing said arm to rock on the pivot 50 and press the finger 48 against the heel 15 of the pawl 15, thus releasing said pawl from the ratchet 14 and permitting the engine shaft and the driven element 11 to turn independently of the hub 18 and sector 19, whereby to, prevent shock to the chauffeur holding the handle 27. Upon a complete forward movement of the sector 19, the dog 53 will be carried to a position to drop into a depression 60 in the track 56, whereby the said dog may, under the influence of the spring 59, assume the opposite angle from that at which it traveled, thereby permitting the pawl to return along the track under the influence of the spring drum 30 until said dog reaches the depression 56.

In order to provide for the use of the ordinary crank for cranking the engine in an emergency, an extension. shaft 61 is secured to the forward end of the driven element 11, said element being bored to receive the inner end of the extension shaft, and the latter being secured by a pin 64. The extension shaft 61 has a lateral stud 62 to receive the slotted socket of a starting crank (not shown). The bearing 63 for the extension shaft '61 is secured to the forward member 35 on the shaft by the clip 44. On the forward end of the driven element 11 a collar 65 may be fastened by a set screw 66 to retain the sector 19 and bushing 17 in position on the driven element 11.

In order to prevent an undue forward movement of the sector 19, stop means may be provided, consisting of a bracket 67 secured to the yoke 33, the foot 68 of said bracket having a formation to overlap the sector 19 and to lie in the path of a stop lug 69 on the opposite end of the sector. Said lug 69 is also utilized in the present instance for the fastening of the chain 31.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In an engine starter, a driven element having a ratchet adapted to be applied to an engine shaft, a drive element in which the driven element is received, manually controlled means to turn the drive element, means to return the drive element to the initial position, a bushing loose in the drive element, said drive element having a limited turning movement on the bushing, a pawl rockably mounted on the bushing to engage the ratchet, said pawl being engageable by the drive element, and a holding device yieldingly engaging the bushing to retain the same and the ,pawl during the initial movement of the drive element.

2. In an engine starter, a driven element having a ratchet and adapted to be applied to an engine shaft, a drive element, means to actuate said drive element, a pawl rockably mounted and adapted to turn with the drive element, a member mounted to turn with the drive element and having a finger adapted to engage the pawl to release the same from the ratchet; a dog pivoted on said member, and a curved track over which said dog is adapted to travel, said track havng means to engage said dog upon a retrograde movement of the drive member.

3. In an engine starter, a driven element;

having a ratchet and adapted to? be applied to an engine shaft, a drive element, means to actuate said drive element, a pawl rockably mounted and adapted to turn with thedrive element, a. member mounted to turn with the drive element andhaving a finger adapted to engage the pawl to release the same from the ratchet, a spring; pressed dog pivoted on the said member and a curved track over which said dog is adapted to REUBEN ABRAHAM 'S'ITABLER; Witnesses:

A. Gni i'roiv HUMMEL, SAMUEL S. BUFFINGTON. 

